i have an older navman F20 & car charger blows a fuse every time its used. As i cant find the socket charger i eventually managed to buy a USB cable the right size which wasnt easy & i trawled many shops. However ive tried using it connected with a 3 pin plug & no joy. I then tried using cable with my computer but no joy. It used to work fine but dosnt hold much charge but hasnt been used for a while. PLEASE CAN YOU HELP.
If you've got a halfway decent smartphone, try Navmii instead. It's FREE, the maps reside on the phone, so no need for a mobile signal and no need to use mobile data to use the maps, just update once in a while over wi-fi.
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